Boiler-tube cleaner.



E. METTLEE.

BOILER TUBE CLEANER. v APPLIoATvIoN hun MAY 15, 190s.

Patena Ml-.M1909 EUGENE" nETTLnnv-or INDIANAPOLIS, INDIANA.

BOLER-TUBE CLEANER.

Specification oi Letters Patent.

Patented March 9, 1969. I

Application filed. May 15, 1908. Serial No. 432,985.

To all whom it may concern:

Be it lmow that I, Esens-n Mn'r'rnnn, a citizen ofthe United States, residing at lndianapolis, iii' the county lof Marion and State of indiana, have invented certain new and useful improvements in Boiler-Tube Cleaners, of which thefollowing is a specification.

The object of my invention is to provide vsuch improvements in detail of construction of a boiler tube cleaning tool as to increasev detail of the improved head with a portion of the members removed.

In the drawings` body vof the tool rovided with a plurality of substantially ra ial sockets 11 defined by4 walls 12. 'By this arrangement there are formed between the walls 12 nearly trian.u gular'pockets '13 one of which is thus formed between eachtwo sockets 11. The walls'.12 are perforated by openings lllsubstantially vat right angles thereto and tothe sockets '11. which intervene. Mounted in each of sockets 11 is the flattened inner end' of a'finger pivotally supported in the socket 11 by means ofY 'a 'pin 16 each of which 'pins is passed freely through openings 14: and is of a length substantially equal to the distance between the outer faces of the two walls 12,

as clearly shown in Fig. 3.v The 'outerend of each finger 15 carries suitable cutting or cleaning members 17 which form no part of my lpresent vinvention.

In the eration of the'device the fingers 15 swine; outwardly by centrifugal force and there with be considerable Awear on the inner walls 12?` unless some member were provided' to take this wear. For this purpose I therefore' provide a plate18 having substantially radial notches 19 adapted to reive and fit the inner ends of the lingers 15 immediately adjacent the open ends of the sockets 11.

The plate 18 is held in place by any suitable means such for instance as a nut 20 on a threaded stud 21 formed integrally with` the 10 indicates the mainl body 10 and projected through the Acentral opening inplate 18. Nut 2O is preferably of such size that it can not be turned uponits stud 21 until the lingers 15 havobeen re# moved from the body, said ngers .thus serving to lock the nut in place. The rotation of the main body 10 within the boiler tube necessarily wears quite rapidly unless some means is provided to taire that wear, and for this purpose l mount in each substantially triangular socket l5 la hard metal block 25 which iillsthe pocket 13 and has an arc shaped exterior projecting slightly beyond the cidrcumfer ence of the body 10, as clearly shown 'in Fig. 3, each 'of said blocks being'held'in-place by a readily removable screw 26 passingthro" l1 plate 18and into the, rear flange 1 0 of ltie main body 10, the-I'varrangement being such that they blocks 'when in place scrive to retain pins 16. v In order to rotate the main body 10 an ordinary motor. 30 maybe used,

said motor having as an active member an eye 31- adapted to receive a hook 32'carried' by or formed'integrally with main body 10; The point of hook 32 lies at a distance 'from the main body 10 an amount sufficient to permit the introduction of eye 31 and, in. order to insure against sudden det-achmentpfthe' parts '1 fill the gap with a perforatedblock 33 which is held in place by means of a pin v 34 passed through flange 1-0 and into hook 32, the opening therefor being formed in the bottom of one of the sockets 11- so that, after lpin 34 is in place, the corresponding finger 15 may be arrangedl in its socket 11 (as clearly shown' 25 may be sharpened on their. forward edges so as to form final cleaningcutters if epockets, of a linger mounted pivotalfvr 'inf the circumference of said head' at the bottom of Fig. 2) and. serve to retain pin 34 in place.. The blocksv each of said sockets, a pivot pin pass-mg'.

therethrough and through the Walls of the sockets, wearing blocksmounted inv the pockets and obstructing the said pivot pins,

andl means for removably holding said wearing blocks in place.

2. ln a tool of the.- class described, the

combination of a main' 'body havinga plu .ralityof sockets', cleaning ngerspivotally .mounted in each of said sockets, a Wearing 3. In a toolof the class described, the

combination of a mainbody having a pluiality of sockets, cleaning lingers pivotally mounted in each of ,said sockets, a Wearing plate 1 8 having a plurality of notches each adapted to. ijeceve one of said 'cleaning .fingers ahd supporting the same transversel'y, 'means for, detachably holding said plate 18 inl place, and a plurality of Wearing blocks removably mounted in the circumference of theheadv and obstructing the Withdrawal of the pivot pins of the cleaning fingers.4 f

Inv witness whereof, I,y have hereunto set myhand and seal at Indianapolis, Indiana, this twelfth day of May, A. D. one thousand nine -hundredand eight.

EUGENE METTLER. [L 3.]

Witnesses: i

ARTHUR M. Hoorn' l THOMAS W. MCMEANS. 

